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ANDROID: gic-v3: Export gic_resume() for vendor GIC enhancements

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syscore ops in gic-v3 takes care of invoking gic_resume() when
exiting from "deep" suspend. However for "s2idle" suspend syscore
ops will not get invoked.

Vendor modules can register for s2idle notifications and
invoke gic_resume() when the first cpu is waking up from s2idle.

Bug: 190353898
Change-Id: I3d565ed3fd0fcada2231b10415dcf487fefc7c5f
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
This commit is contained in:
Maulik Shah
2021-06-08 14:35:10 +05:30
committed by Todd Kjos
parent fb49b843af
commit 5fd82d3115
2 changed files with 5 additions and 1 deletions
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4
drivers/irqchip/irq-gic-v3.c
View File

@@ -1267,10 +1267,11 @@ static inline void gic_cpu_pm_init(void) { }
#endif /* CONFIG_CPU_PM */ #endif /* CONFIG_CPU_PM */
#ifdef CONFIG_PM #ifdef CONFIG_PM
static void gic_resume(void) void gic_resume(void)
{ {
trace_android_vh_gic_resume(gic_data.domain, gic_data.dist_base); trace_android_vh_gic_resume(gic_data.domain, gic_data.dist_base);
} }
EXPORT_SYMBOL_GPL(gic_resume);
static struct syscore_ops gic_syscore_ops = { static struct syscore_ops gic_syscore_ops = {
.resume = gic_resume, .resume = gic_resume,
@@ -1283,6 +1284,7 @@ static void gic_syscore_init(void)
#else #else
static inline void gic_syscore_init(void) { } static inline void gic_syscore_init(void) { }
void gic_resume(void) { }
#endif #endif

2
include/linux/irqchip/arm-gic-v3.h
View File

@@ -708,6 +708,8 @@ static inline bool gic_enable_sre(void)
return !!(val & ICC_SRE_EL1_SRE); return !!(val & ICC_SRE_EL1_SRE);
} }
void gic_resume(void);
#endif #endif
#endif #endif